If all those atrocities and "misinterpretations" were made some 4,000 years ago reading the same (then much more accurate book), why use the same, much more erroneous, book today?
great question, Yan.
Several here asked a couple of zealot fundamentalists posters this same question in regard to belief in Jesus:
How can they believe what the Bible says about Jesus when they repeatedly denounce the Bible as mostly unbelievable?
The answers showed they conveniently cherry-pick whatever they want to believe.
Logic does not factor into the equation.